SPILL-PROOF OPENING - Ergonomic design to our dust-proof/leak-proof lid, every part of our water bottles is designed with you in mind! With a tough material and a special reflective that reacts uniquely to your environment, it is both stylish and convenient to use. Easy to drink water through the pour spot while cycling, trekking & more. CONVENIENT CARRY CLIP - Carry it, clip it, or swing it by your side. The stainless-steel pin in our handle makes this lid nearly indestructible and allows the comfortable wide handle to have a smooth swing action. KEEP HOT & COLD – Keep your water hot or cold. A double-wall vacuum insulated technology design makes it keep hot or cold for long hours. A big bonus for a big enough mouth to fit ice cubes. Now, enjoy cool and fresh in hot summer, enjoy the warmth in cold winter. DURABLE, EASY TO CLEAN - It is built with highly durable stainless steel material that can sustain in a rough environment too. It has a broad mouth which easies to fill and clean the bottle. WIDE MOUTH, HIGH CAPACITY - Its large mouth opening makes filling and cleaning easy, it can even be used with ice for extra cold refreshment. Its outer body stays cool to the touch when filled with hot liquids and is condensation-free with cold beverages. It comes with a large capacity of 550ml, ideal for family outings, or with friends.